diff --git a/src/main/entry/org/bdware/sc/bean/Contract.java b/src/main/entry/org/bdware/sc/bean/Contract.java
index 59314dd..3cbb86e 100644
--- a/src/main/entry/org/bdware/sc/bean/Contract.java
+++ b/src/main/entry/org/bdware/sc/bean/Contract.java
@@ -39,6 +39,7 @@ public class Contract extends SM2Verifiable implements Serializable {
     private String hash;
     private boolean stateful = true; // manifest可配置
     private YjsType yjsType;
+    private JsonElement createParam;
 
     public int getShardingId() {
         return this.shardingId;
@@ -226,4 +227,11 @@ public class Contract extends SM2Verifiable implements Serializable {
         this.buildTime = buildTime;
     }
 
+    public void setCreateParam(JsonElement ele) {
+        createParam = ele;
+    }
+
+    public JsonElement getCreateParam() {
+        return createParam;
+    }
 }
diff --git a/src/test/java/org/bdware/sc/boundary/utils/SM2UtilTest.java b/src/test/java/org/bdware/sc/boundary/utils/SM2UtilTest.java
index d3bc552..c216d72 100644
--- a/src/test/java/org/bdware/sc/boundary/utils/SM2UtilTest.java
+++ b/src/test/java/org/bdware/sc/boundary/utils/SM2UtilTest.java
@@ -1,5 +1,6 @@
 package org.bdware.sc.boundary.utils;
 
+import org.bdware.sc.bean.ContractRequest;
 import org.bouncycastle.crypto.AsymmetricCipherKeyPair;
 import org.bouncycastle.crypto.params.ECPrivateKeyParameters;
 import org.bouncycastle.crypto.params.ECPublicKeyParameters;
@@ -18,7 +19,20 @@ public class SM2UtilTest {
     String keyPairStr =
             "{\"publicKey\":\"0442e39c0b1623e6f95ef896d37f41aa3cd98fbc3aea71250eedba4335c6c3aff51b5fa2352f920d1063b50a30738427c18375df886985a63e0f496293fdad22a8\",\"privateKey\":\"b7e504cf951792554bf4a9874be37cb1279d38939444388e2046ee9603b4f0c4\"}";
     SM2KeyPair keyPair = SM2KeyPair.fromJson(keyPairStr);
+    @Test
+    public void verify2(){
+        String toVerify = "GeneralContract|plainTextTransmission|{\"ledger\":\"test\",\"data\":\"上链信息为json格式\"}|04398dfde44290595cd098cd2f904b36367c69f9011719d43fb0955f823cf1386764769bc7c0a5649dcb316d552998a5c106afd268d9db8b6482ce527544a7bd15";
+        String sign = "30440220137771d7505abde700c89cfa376f67c564dfdec6ffdb08cb08ff70544be6cb6f0220587296439bedf43f4b0bfec2d7030a8250d369e53af623e50a734e3b6cb780cb";
+        String pubkey = "04398dfde44290595cd098cd2f904b36367c69f9011719d43fb0955f823cf1386764769bc7c0a5649dcb316d552998a5c106afd268d9db8b6482ce527544a7bd15";
+        ContractRequest cr = new ContractRequest();
+        cr.setContractID("GeneralContract");
+        cr.setAction("plainTextTransmission");
+        cr.setArg("{\"ledger\":\"test\",\"data\":\"上链信息为json格式\"}");
+        cr.setPublicKey("04398dfde44290595cd098cd2f904b36367c69f9011719d43fb0955f823cf1386764769bc7c0a5649dcb316d552998a5c106afd268d9db8b6482ce527544a7bd15");
+        cr.setSignature("30440220137771d7505abde700c89cfa376f67c564dfdec6ffdb08cb08ff70544be6cb6f0220587296439bedf43f4b0bfec2d7030a8250d369e53af623e50a734e3b6cb780cb");
 
+        System.out.println(cr.verifySignature());
+    }
     @Test
     public void base64() {
         String gstr =